Yes, it’s super easy! Rescheduling posts in Nelio’s editorial calendar is as simple as dragging-and-dropping them on a different day. Just click on the post you want to reschedule and move it around. You can even use this drag-and-drop functionality to trash the post—just drop it in the Trash area at the top right of the calendar:

Moreover, you can also hover over the areas at the top left of the calendar whilst dragging a post to go to the next (or the previous) month easily. Just hover the next or previous area for a moment and the calendar will start to move forward or backwards in time every second or so. Once the month you’re interested in is on screen, drop the post on the desired day and you’re done!

Another outstanding advantage that will save you a lot of time is auto-rescheduling. If you reschedule a post, all social messages and tasks related to this post will be rescheduled too, without your doing anything.
And all these functionalities also apply to social messages and editorial tasks! You can always drag-and-drop stuff around in the editorial calendar.
Finally, if you want to finer tune the exact moment in which an element is published, just click on it to open its editor dialog—not only will you be able to change its publication date, but also its publication time.
